InChI=1S/C27H32N2O7/c1-3-4-9-17(2)11-14-22(33)28-18-16-27(35,26-25(36-26)24(18)34)15-8-6-5-7-10-21(32)29-23-19(30)12-13-20(23)31/h5-8,10-11,14-17,25-26,30,35H,3-4,9,12-13H2,1-2H3,(H,28,33)(H,29,32)